Muffler



FIG. 1 is a front perspective view of a muffler according to the invention.

FIG. 2 is a top view of the muffler of FIG. 1.

FIG. 3 is a bottom view of the muffler of FIG. 1.

FIG. 4 is a front view of the muffler of FIG. 1.

FIG. 5 is a rear view of the muffler of FIG. 1.

FIG. 6 is a left side view of the muffler of FIG. 1; and,

FIG. 7 is a right side view of the muffler of FIG. 1. 

The ornamental design for a muffler, as shown and described. 